<template>
<div>
  <div class="search">
    <input class="search-input" v-model="keyword" type="text" placeholder="输入城市名或拼音">
  </div>
  <div class="search-content" ref="search" v-show="keyword">
   <ul>
     <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
     <li class="search-item border-bottom" v-show="hasNoData">
      没有找到匹配数据
     </li>
   </ul>

  </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
import {mapMutations} from 'vuex'
export default {
  name:'CitySearch',
  props:{
    cities:Object
  },
  data () {
    return{
      keyword:'',
      list:[],
      timer:null
    }
  },
  computed:{
    hasNoData() {
      return !this.list.length
    }
  },
  methods:{
      handleCityClick(city){
      // this.$store.dispatch('changeCity',city)
      // this.$store.commit('changeCity',city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  watch:{
     keyword () {
       if(this.timer){
         clearTimeout(this.timer)
       }
       if(!this.keyword){
         this.list=[]
         return
       }
       this.timer = setTimeout(() => {
          const result =[]
          for (let i in this.cities){
            this.cities[i].forEach((value)=>{
              if(value.spell.indexOf(this.keyword)>-1 ||
               value.name.indexOf(this.keyword) >-1){
                 result.push(value)
               }
            })
          }
          this.list =result
       },100)
     }
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
  .search
    height:.72rem
    padding:0 .1rem
    background:$bgColor
    .search-input
      box-sizing:border-box
      width:100%
      height:.62rem
      padding: 0 .1rem
      line-height:.62rem
      text-align:center
      border-radius:.06rem
      color:#666
  .search-content
      position:absolute
      z-index:1
      overflow:hidden
      top:1.58rem
      left:0
      right:0
      bottom:0
      background:#eee
      .search-item
        line-height:.62rem
        padding-left:.2rem
        background-color:#fff
        color:#666

        

</style>

